Thermometer hub



FIG. 1 is a top, front, right side perspective view;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

In the drawings, the broken lines are for the purpose of illustrating environment only, and form no part of the claimed design. 

CLAIM The ornamental design for a thermometer hub, as shown and described. 